Dirk Draheim Melanie Himsl Daniel Jabornig Werner Leithner Peter Regner Thomas Wiesinger Intuitive Visualization-Oriented Metamodeling. 727-734 2009 DEXA http://dx.doi.org/10.1007/978-3-642-03573-9_60 conf/dexa/2009 db/conf/dexa/dexa2009.html#DraheimHJLRW09